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Tesco boss Dave Lewis is spearheading new trials of store layouts across different retailers in London, which could be used as a model to nudge consumers towards healthier products.
Under the scheme being trialled by the Consumer Goods Forum (CGF), stores in the boroughs of Lambeth and Southwark are experimenting with ideas to "drive behavioural change".
Boots, Sainsbury's, M&S and the Co-op...